clutch piston for 180
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=128417
Printed Date: 24 Aug 2025 at 2:40am
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Topic: clutch piston for 180
Posted By: fibreallis
Subject: clutch piston for 180
Date Posted: 06 Sep 2016 at 7:11pm
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My pto does not operate when put under a load. I am being told that it is the clutch piston and it can not be found. Any ideas? Also looking for the clutch assembly housing and the sealing rings.
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Replies:
Posted By: fibreallis
Date Posted: 06 Sep 2016 at 7:21pm
Posted By: DrAllis
Date Posted: 06 Sep 2016 at 7:26pm
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And, you don't have it apart and you are sure that's what you need ???
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Posted By: fibreallis
Date Posted: 06 Sep 2016 at 7:31pm
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It is in the shop and the clutch was replaced and the pto clutch plates were also replaced. the mechanic says that is the only thing that wasn't replaced except for the pto clutch housing assembly and sealing rings.
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Posted By: DrAllis
Date Posted: 06 Sep 2016 at 7:56pm
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The foot clutch was replaced?? What is the hydraulic pressure going to the PTO clutch ?? The reality is, those PTO clutches don't usually give much trouble. After 40 years, I can still count on one hand how many of those clutches I ever worked on.
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Posted By: fibreallis
Date Posted: 06 Sep 2016 at 8:40pm
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The foot clutch was replaced along with the flex plate and the clutch pack for the pto. The weird thing we found was that all the clutch disks looked ok. Without an micrometer I could not tell the difference between the old and new disks. The biggest problem we found was the flex plate was worn more on one area rather than the whole thing. Also the shaft that comes into the side from the foot pedal was wallowed out and out of adjustment. The pto was slow before we did this work. It would run slow but it would run and now nothing. Any advice would be very helpful.
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Posted By: MACK
Date Posted: 06 Sep 2016 at 10:21pm
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Sounds like a new mechanic should be in order. MACK
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